Every weekend, we comb our memories and archives to compile 10 useful items addressing a specific topic you may have forgotten about, or just happen to be excellent. Here are the 20 list(icle) posts that proved the most popular in 2009.

The best boxing doesn't always happen at the heavyweight level. Likewise, some of the best things you can load onto your Windows system are tiny little guys that just make day-to-day writing, working, and surfing better.

We didn't change everything from our original 2006 list, but we did mix up our favorite add-ons for our favorite browser with a few essentials that Lifehacker editors, and readers, have found indispensable.

Just before Windows 7 dropped, we put together the apps that developers had updated or released new to integrate with Windows 7. Some add in things missing from Microsoft's latest OS, while others improve on what's already there.

Gina had only compiled her list less than two years ago, but the web's become an even bigger playground for developers since then. The truly helpful and useful ones, without gigantic advertising budgets, were worth highlighting. Photo by thievingjoker.

This was Adam's favorite Top 10 of at least the year, if not possibly all time. Either he's really into short, goofy fan fiction, or just appreciates a number of 1980s pop-culture references sprinkled into his listicles. Either way, it's fun to make like everyone's favorite duct tape enthusiast with these clever hacks. Image by PoweredByLarios™.

Modern batteries help us feel like we're living in the future, with cellphones that can do anything and laptops that can work anywhere—when they're fully charged. Otherwise, getting the most out of them requires some old-fashioned cleverness and energy frugality, detailed in these tips. Photo by conskeptical.

Once everything's hooked up, it's easy to just point your HD TV in the right direction and call it a day on your home theater setup. Take on a few of these projects and pointers, though, and you'll get a nicer-looking, better-performing system. Photo by chunkysalsa.

Why was this so popular? Because almost everybody loves an excuse to be outside, and nearly everyone loves an excuse to obsess over tasty food. That's just our guess, anyways, and these 10 skills testify to how geeky this excuse can really get. Photo by adactio.

Those 10 may have been the most popular, but if you're still eager for some more listicle goodies, here's a quick overview of the next ten most popular.

11. Top 10 Tools for a Free Online Education"It's easy to forget these days that the internet started out as a place for academics and researchers to trade data and knowledge. Recapture the web's brain-expanding potential with these free resources for educating yourself online."

12. Top 10 Apps that Boost Your Media Center"Streaming video, digital DVD backups, DVR recording-it's all possible from your TV-connected media center, and you don't need a system administrator to pull it off. These 10 apps make filling and controlling your media center PC even easier."

13. Top 10 Home Office Hacks"Whatever kind of work you do at home, your office is one place you want to spend the time to make comfortable and convenient. Take 10 of our tips on organizing, fixing, and streamlining that space."

16. Top 10 Productivity Basics Explained"There's a core set of habits and techniques that filter and color a lot of what we write about at Lifehacker, but we rarely step back to explain them for newcomers. Let's get back to basics with 10 productivity tactics."

17. Top 10 Tools for Your Blog or Web Site"Having your own hosted web domain has never been cheaper, or easier, with the vast array of free resources out there. Here are our ten favorite tools to help anyone launch and maintain their internet presence."

18. Top 10 Tips and Tricks for Better CoffeeCoffee doesn't always make work better, but you can definitely work to get better coffee. From four-cup hotel machines to French presses, from home-roasted beans to decorative foam-we've got a wealth of tips for enjoying a better cup.

19. Top 10 Tricks for Making Your Playlists Rock"If music is part of your everyday work routine, workout, or commute, stuffing your player full of tunes and hitting shuffle just won't cut it. Scan these 10 tips for improving and expanding your music playlists."

20. Top 10 Outlook Boosters"Outlook is such a fixture of office and computer life, its potential as a central life-organizing inbox is easily taken for granted. Empower your Outlook with these add-ons, link-ups, and data management techniques."

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Want a quick blast from the past? Our most popular top 10s of 2008 and 2007 are just a click away.